1. See Damage Increases by Size to calculate the damage for a weapon larger than Medium or smaller than Small.
2. Weight figures are for Medium weapons. A Small weapon weighs half as much, and a Large weapon weighs twice as much.
3. When two types are given, the weapon is both types if the entry specifies "and", either type (player's choice at time of attack) if the entry specifies "or", or each end of the double weapon is a different type if the entry specifies "/".
4. The hp value given is for Medium armor, weapons, and shields. Divide by 2 for each size category of the item smaller than Medium, or multiply it by 2 for each size category larger than Medium.

Now, zit ztill. Zis will not hurt me a beat.

The bonesaw is not typically a weapon, rather it is a grim medical device for the purpose of removing limbs, and sawing through bone. This bonesaw has been balanced for combat use, used almost like an axe, with a heavy sawing motion as you pull back from your blow, dealing vicious damage. The serrated edge and bonecutting nature of the tool gives it a high critical rate as well as keen sharpness and high damage for its small size.

When not used in combat, it is a powerful tool. It deals full damage and deals critical damage against wood, bone, and normal stone (hardness 8 or less) objects when you spend at least 1 full round action or more sawing on an immobile object, an action which provokes attacks of opportunity. Against metals, and unusual stonework with hardness greater than 8 it deals normal damage.

While not a magical weapon, it's design resonates well with certain enhancements. You may apply the Merciful and Vicious enhancements to the weapon for a straight +4000 gp cost. The Wounding enhancement only costs +1, and the Vorpal enhancement only costs +4.

You can use the Weapon Finesse feat to apply your Dexterity modifier instead of your Strength modifier to attack rolls with a bonesaw sized for you, even though it isn’t a light weapon for you. You can’t wield a bonesaw in two hands in order to apply 1½ times your Strength bonus to damage.